Improvement in ploughs



L, GIBBS.

Plow-Clavis.

Patented June 25. 186'?v MTVSSES;

N PETERS, PHOTO-LITHOGRAPHER. wASmNGToN. D C.

l @atten tats istat @ffice vvLEWIS. Gleeson CANTON, OHIO, AssieNOe ToBCHER, enses a OO.,

1 OF SAME rLAcE.

Letters Patent No. 66,016, cZatetZ'Jie 25, 1867.

IMPROVEMENT 1N PLOUG'HS.

TO ALL WHOM'IT 'MAY CONCERN:

Beit known that I, LEWIS GIBBS, of Gantoiuin the county of Stark, andState .of Ohio, have invented certain new and useful Improvements inPloughs'; and I do rhereby declare the following to be a full, clear,and exact description of the same, reference being had totheaccompanying drawings. making a part of this specieation, in Which-Figure 1 represents a. view of the plough from the land-side, and

Figures 2, 3, and 4 represent respectively, and Onan enlarged vscale,aside, top, and horizontal section of the @levis and point of theplough-beam to which it is united. l I l Similar letters of referencewhere they occur in the separate figures denote like parts in all cases.

Letters Patent of the United States were granted to my assignees on the12th March, 1867, for an improvement in ploughs, in which many of thefeatures of the `present invention may be found, and do not propose toagain describe these features, but to point out the difference betweenthem and thepresent invention. A Y

Inthe plough above referred to the bar on the land-side is secured tothe share near the point by a dovetail on top, in which position it isliable to wear away by use. In the present invention unite the bar A tothe share B by a dove-tail, a, underneath, so that the wear upon theshare does not Vinjuricnsly affect the `joint or point of union. Thismode of uniting the bar and share, as well as that heretofore patented,as above stated, avoids the necessity of Welding,- these pieeestogtlh'erat that point, and makes either piece removable'and replaceable withoutremoving or replacing both, and in steel or cast-iron ploughs is a verydecided saving and advantage. In other respects the plough maybe likethat patented to my assignees, as above mentioned.

Another part of my invention consists in a cast' clevis, made in twoparts, and so constructed that when applied to the beam it shall claspthe beam by a dove-tail connection, and be held rmly thereto by a boltpassing through the clevis and beam. C and C represent the two sectionsof the clevis,febeinfT the dividing line or jointbetween them. The endof the plonghbcam D is shaped as shown in thesection, tig. 4, and thecheeks d of the Vclevis are hollowed out so as to lie snugly againstthis' out portion of the beam, andmay lap over the top and bottom of thebeam more orless, as seen in iig. 3, so as to he flush with the sidesoi'the beam. When the two-sections C Care laid against the sides of thebeam so prepared to receive them, a bolt, e, is passed through andthrough to hold them` together and to the beam, the strain on the clevisin Vdrawing lthe plough thus coming upon the dove-tail formed on the endof the beam. The clevis hooker ringf is held in either of the holcs'l 23' byabclt or key passing through the forward ends of the elcvis. ,Thehole for the bolt c is represented at Having thus fully described myinvention, what Iclairn therein as new, and desire -to secure by LettersPatent, is

described.

2. I also claim a clevis made in two parts, with dove-tail recesses casttherein, so as to fit a dove-tail or shoulder formed on the end of ,thebeam, and united thereto by a bolt or key, substantially as hereindescribed and represented. r

LEWIS GIBBS.

Witnesses:

J. CREVOISIE, Jr., J. M. LIND.

1. Uniting the bar A to the share B at the pointa, underneath the share,as and for the purpose hereinl

